- 可以给孩子设置一个任务，比如说能够将一知识掌握得很好，就可以在课程的结尾进行Game Time
- ‘stand up and turn back, close eyes. I will walk to you, and get sth from your desk, then I will say 'this is a blue pencil'. If you got a blue pencil, you will turn back and say 'It's mine.' Then, you can get a letter/star.
- 奖励的星星可以变成字母，字母在最后可以拼成这节课我们学习的单词
